CN103712858B - A kind of spiral loading locating device of post - Google Patents
A kind of spiral loading locating device of post Download PDFInfo
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- CN103712858B CN103712858B CN201410004388.2A CN201410004388A CN103712858B CN 103712858 B CN103712858 B CN 103712858B CN 201410004388 A CN201410004388 A CN 201410004388A CN 103712858 B CN103712858 B CN 103712858B
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Abstract
The present invention relates to structural test field, be specifically related to the loading locating device of compressed column test in a kind of civil engineering work, be specially adapted to the second load of compression column under load and environment coupled action.Load locating device and comprise the vertical lift system be made up of U-shaped lower shoe, U-shaped upper plate, lifting screw, turning handle, spring, nut, guide pillar, guide pin bushing and bolt hole, and location auxiliary frame, horizontal movement system and fixed system.Loading locating device can hold up compression column and arrive three-dimensional optional position, people is not only needed to hold up, and the loading demand of different size and different structure compression column can be met, achieve the quick and precisely location that compression column is loaded, ensure that compression column remains vertical stable in position fixing process.
Description
Technical field
The present invention relates to structural test field, be specifically related to the loading locating device of compressed column test in a kind of civil engineering work, be specially adapted to the second load of compression column under load and environment coupled action.
Background technology
In civil engineering structure test, often to carry out static(al) pressurized load test to steel column, reinforced column and steel core concrete column.In order to accurate simulation test piece end constraint condition and the accuracy ensureing loading position, usually adopt cutter strand or ball twisted branch seat, because cutter strand or ball twisted branch seat are line or point cantact, therefore it has instability (as shown in Figure 1), when testing in place, by people, pillar must be buttressed guarantee pillar and vertically not toppling over.In the load test of post, loading position is a line or a point normally, compression column yardstick is large, weight is large, often weigh several tons, no matter be center loaded or bias-load, how keep the vertical stable of compression column and loading position that how rapid alignment is preset always to be a difficult problem in structural test.
At present, the method generally adopted is artificial righting and aligning, and lifted on testing table or universal testing machine operating platform by compression column by operating personnel, then righting is while adjust lifting jack, is added on compression column by load while aligning.This method needs numerous labours, general 4-5 people, and aims at difficulty especially greatly, usually needs repeatedly could aim at.In addition, because compression column yardstick is large, weight is large, and be again work high above the ground, namely compression column can topple over unless you give your whole attention to it, and the lighter causes test failure, heavy then jeopardize the safety of testing equipment and personnel.
Summary of the invention
Loading position cannot be preset by rapid alignment in prior art, need numerous labour, mobile difficulty is large, the defect such as easily to topple over, problem to be solved by this invention is to provide one can be disposable, quick and precisely and stable alignment presets the loading locating device of loading position (line or a point) arbitrarily, described loading locating device not only can freely move horizontally, but also can free VTOL (vertical take off and landing), the loading demand of the compression column of different size and different structure can be met, particularly importantly, can ensure that compression column remains vertical stable in position fixing process, avoid compression column to topple in position fixing process.Described compression column refers to the pillar of intending carrying out pressurized tests.
For the load test of post, the localization method that prior art generally adopts is artificial righting and aligning, lifted on testing table or universal testing machine operating platform by compression column by operating personnel, then righting is while adjust lifting jack, is added on compression column by load while aligning.This method generally needs numerous labours, and aligning difficulty is large especially.Loading locating device of the present invention adopts hollow structure to be held up from bottom by compression column, make compression column unsettled, the vertical stability of compression column is ensured by two pieces of horizontal slip back up pads, because it is in vacant state, therefore, no matter be tangential movement or VTOL (vertical take off and landing), compression column all keeps vertical stablizing not topple over.
The technical solution adopted for the present invention to solve the technical problems is:
A spiral loading locating device for post, is characterized in that, comprises location auxiliary frame, horizontal movement system, vertical lift system and fixed system (see Fig. 3,4,5), wherein:
Described location auxiliary frame is hollow structure, comprises two pieces of horizontal slip back up pads, and described location auxiliary frame can in level and vertical direction movement arbitrarily, for supporting compression column and ensureing that compression column remains vertical stable in loading position fixing process;
Described horizontal movement system is used for making compression column movement arbitrarily in the horizontal direction;
Described vertical lift system is used for making compression column move arbitrarily at vertical direction and keep arbitrary height, described vertical lift system comprises: U-shaped lower shoe, U-shaped upper plate, lifting screw, turning handle, spring, nut, guide pillar, guide pin bushing and bolt hole, the U-shaped base of described U-shaped upper plate is provided with bolt hole, four bights of described U-shaped lower shoe are provided with four vertical guide pillars, four bights of corresponding described U-shaped upper plate are provided with four guide pin bushings, the package assembly of described vertical lift system is: described spring is inserted in the guide pillar on U-shaped lower shoe, described U-shaped upper plate penetrates four guide pillars on U-shaped lower shoe by four guide pin bushings, described lifting screw screws in the bolt hole on U-shaped upper plate, there is turning handle one end of described lifting screw, the function one of turning handle is the rotation being to facilitate screw rod, two is be that the moment of torsion of increase screw rod improves the rotation load-carrying capacity of screw rod, the other end and the U-shaped lower shoe of described lifting screw are rotationally connected, turning handle drives lifting screw to rotate in bolt hole, thus drive U-shaped upper plate along guide pillar elevating movement in vertical direction, the function that guide pin bushing penetrates four guide pillars is that U-shaped upper plate is when bolt eccentric rotary, ensures U-shaped upper plate overall maintenance level and not offseting when vertical Enhance Sports, the function one of described spring is the deadweight being to offset pillar, and lifting screw is easily rotated, and two is make U-shaped upper plate keep balance.
The location auxiliary frame of described fixed system after making location and the compression column on it keep static;
Compression column is placed on described location auxiliary frame, location auxiliary frame described in adjustment makes it highly be greater than the height of cutter hinged-support, moving horizontally described location auxiliary frame makes the compression column on it arrive the loading position preset, vertical lift system described in reduction makes the bottom surface of compression column accurately drop on default loading position and touches with cutter twisted branch seated connection, the deadweight of compression column is born by cutter twisted branch seat, the vertical stable of compression column is ensured by the horizontal slip back up pad rest on the auxiliary frame of location, to compression column load application make compression column keep under the effect of two ends cutter hinged-support stable after, continue the vertical lift system described in reducing, described location auxiliary frame and compression column are departed from, load application coupled columns carries out mechanical property test.
Described cutter hinged-support is loaded bearing by the V-type with recess first and is with the V-type second of plush copper to load bearing and forms, the V-type first of described band recess loads the V-type first that bearing is selected from central through hole and loads bearing and do not load bearing with first of central through hole, after the V-type plush copper that described second loads bearing is put into the V-type recess of the first loading bearing, the superposition height sum of two bearings is the height of cutter hinged-support.According to the needs of load test, select with central through hole or do not load bearing with first of central through hole, when compression column carries out second load under to load and environment coupled action, select the first loading bearing and second of band central through hole to load the cutter twisted branch seat of bearing combination composition, other load condition selects the cutter twisted branch seat not loading bearing and the second loading bearing combination composition with first of central through hole.The V-type tip of described cutter hinged-support is the V-type tip of the second loading bearing.
By compression column, the method be placed on cutter hinged-support adopts manpower to be lifted by compression column at present, then be put on cutter hinged-support, because cutter hinged-support and compression column are line or point cantact, therefore not there is stability, need people to carry out righting and guarantee that it is vertical, the aligning of cutter hinged-support and default loading position is very difficult, if once can not aim at, then need compression column to lift again to aim at, often need repeated multiple timesly just to complete, and each aligning all will lift compression column, bothersome effort.The present invention adopts vertical lift system, compression column is shelved on the auxiliary frame of location, hoistable platform VTOL (vertical take off and landing) is driven by swivel bolt, during practical operation, as long as hoistable platform to be elevated to the height higher than cutter hinged-support, make to maintain a certain distance between compression column and cutter hinged-support (can be generally 5-20 millimeter), so just can easily movable knife hinged-support to preset loading position, reduce location auxiliary frame after cutter hinged-support and default loading position are aimed at, just achieve the accurate aligning of cutter hinged-support and loading position.
The shape of the guide pin bushing in the vertical lift system of the present invention's spiral loading locating device is identical with the cross sectional shape of guide pillar, and as preferably, the cross sectional shape of described guide pillar is circular, and corresponding guide pin bushing shape is circular guide pin bushing.
As preferably, spring in the vertical upgrade-system of the present invention's spiral loading locating device is arrange in pairs, away from sheathed paired spring (a pair spring) on two guide pillars of lifting screw one end, or on four guide pillars all sheathed spring (two pairs of springs), its interior diameter of described spring is greater than the diameter of guide pillar, the height of described spring is the adjustable height that height after spring-compressed adds vertical lift system upper plate, the elasticity of described spring is determined according to the deadweight of test pillar, generally chooses 1/2 of pillar deadweight for good.
As preferably, bolt hole position in the vertical upgrade-system of the present invention's spiral loading locating device arranges the nut identical with bolt hole internal diameter whorl, its function is to increase the rigidity to lifting screw, makes U-shaped upper plate overall maintenance level when vertical displacement movement.
As preferably, the other end of the lifting screw described in vertical upgrade-system of the present invention's spiral loading locating device and U-shaped lower shoe are rotationally connected and are realized (see Fig. 6) by following structure: the bottom of lifting screw is provided with outstanding rounded stops, the diameter of rounded stops is greater than the diameter of lifting screw, the U-shaped base of U-shaped lower shoe is provided with bearing, the position of bearing is vertical corresponding with bolt hole, be arranged with circular hollow interstage sleeve outside described rounded stops, described circular hollow interstage sleeve is connected with U-shaped lower shoe.The function of described bearing is to reduce the friction force between lifting screw and U-shaped lower shoe, and the function of described rounded stops and circular hollow interstage sleeve is the position of solid bearing and lifting screw, ensures that lifting screw only rotates.
As preferably, the guide pillar in the vertical upgrade-system of the present invention's spiral loading locating device adopts with U-shaped lower shoe and is threaded or welds, and described guide pin bushing adopts with U-shaped upper plate and is threaded or welds.
As preferably, the location auxiliary frame of the present invention's spiral loading locating device comprises U-shaped upper plate, the two pieces of horizontal slip back up pads be shelved on U-shaped upper plate, two parallel-segment of described U-shaped upper plate are provided with rectangle bolt hole, and described horizontal slip back up pad to be fixedly connected with rectangle bolt hole by bolt and horizontal slip can to fix on U-shaped upper plate; Described lifting screw screws in the bolt hole on U-shaped upper plate, guarantees that location auxiliary frame can stop at arbitrary height.
As preferably, the horizontal movement system of the present invention's spiral loading locating device comprises U-shaped lower shoe and is evenly distributed on the roller in U-shaped lower shoe four bights; Described roller and U-shaped lower shoe is with bolts or welding; Preferred, described roller is universal wheel, and described universal wheel can be universal wheel with lock function.
As preferably, the fixed system of the present invention's spiral loading locating device comprises lower shoe and is evenly distributed on the adjusting bolt in U-shaped lower shoe four bights.
The present invention loads the principle schematic of locating device see Fig. 2, and its principle is: arrange two pieces of horizontal slip back up pads in the bottom of compression column, and compression column is shelved in horizontal slip back up pad, compression column entirety is held up by horizontal slip back up pad.Horizontal slip back up pad is arranged on the bottom surface two ends of compression column, therefore ensure that the vertical stable of compression column, distance between horizontal slip back up pad can adjust arbitrarily with the needs of the different size compression column of satisfied support, the height of horizontal slip back up pad can be elevated arbitrarily the needs meeting differing heights cutter hinged-support, horizontal slip back up pad can level move with the needs meeting any loading position of rapid alignment arbitrarily, namely loading locating device of the present invention can hold up compression column and arrive three-dimensional optional position, therefore the quick and precisely location that compression column is loaded easily is achieved, and do not need people to hold up.During test, only need adjust the distance between horizontal slip back up pad, compression column is held on horizontal slip back up pad, by the height of vertical lift system adjustment horizontal slip back up pad, make the bottom surface of support compression column thereon higher than cutter hinged-support certain distance (can be generally 5-20 millimeter), to ensure that horizontal slip back up pad can the accessible movement of level, the plan loading position of support compression column is thereon made accurately to aim at the V-type tip of cutter hinged-support in the vertical direction by horizontal movement system slow mobile and horizontal sliding support plate in surface level, then reducing jacking system makes the bottom surface of the compression column be supported in horizontal slip back up pad contact with cutter hinged-support, the deadweight of compression column is born by cutter hinged-support, so, just the accurate location to compression column load test is achieved.
Based on loading locating device of the present invention, the present invention also provides a kind of loading localization method of post, comprises the steps:
According to claim 1, the loading method of the spiral loading locating device of post, is characterized in that comprising the steps:
(1) loading position of compression column upper and lower end is determined;
(2) compression column is placed on the auxiliary frame of location;
(3) be elevated vertical lift system, make compression column flying height placed on it be greater than the height of cutter twisted branch seat;
(4) a cutter twisted branch seat is placed in the end face of compression column, make the V-type tip of described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column upper end;
(5) the force application location place of described location auxiliary frame to pilot system is moved horizontally;
(6) another cutter twisted branch seat is placed in bottom surface loading place of compression column, make the V-type tip of described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column lower end, then reduce vertical lift system, the bottom surface of compression column is contacted with described cutter hinged-support;
(7) to compression column load application, make compression column keep under the effect of two ends cutter hinged-support stable after, continue the vertical lift system described in reducing, itself and compression column departed from;
(8) unscrew the bolt of fixing horizontal sliding support plate, described location auxiliary frame is shifted out bottom compression column, and then load application carries out mechanical property test to compression column.
Beneficial effect of the present invention is mainly manifested in:
1, loading locating device of the present invention not only can move horizontally, but also can freely be elevated, stop at arbitrary height, not only successfully solve the vertical stable and rapid alignment problem of compression column in pressurized load test, but also solve the loading location needs of different size and different structure compression column;
2, the horizontal slip back up pad supporting compression column in loading locating device of the present invention is connected with rectangle bolt hole on entablature horizontal flange by bolt, horizontal slip back up pad can be slided fixing on entablature horizontal flange according to the size dimension of compression column, successfully solve the loading location needs of different size and difformity compression column;
3, loading locating device own wt of the present invention is light, volume is little, and the horizontal slip back up pad supporting compression column in loading locating device is connected with rectangle bolt hole on entablature horizontal flange by bolt, after compression column is accurately located, rotary handle reduces the entablature of hoistable platform, the bolt rotating fixing horizontal sliding support plate again can easily shift out loading locating device bottom compression column, successfully eliminates locating device and hoistable platform to the impact tested;
4, loading locating device of the present invention makes it not rotate by locking universal wheel and ensures that locating device horizontal direction is not moved, and ensure that compression column slightly slided due to load action before loading is stable.
5, charger of the present invention is located after being held up by compression column, can quick and precisely realize loading the location of compression column, and the loading position of change can be aimed at arbitrarily, more be conducive to the stressed research to compression column, change loading position speed fast, easy realization, people is no longer needed to hold up by the location of compression column after loading locating device, solve compression column due to yardstick large, weight is large, and be again work high above the ground, namely compression column can topple over unless you give your whole attention to it, the lighter causes test failure, heavy then jeopardize the problem of testing equipment and personal security.
Accompanying drawing explanation
Fig. 1 is the loading location structure schematic diagram of prior art center pillar.
Fig. 2 is the inventive principle schematic diagram that the present invention loads locating device.
Fig. 3 is the structural representation that the present invention loads locating device.
Fig. 4 is the top surface structure schematic diagram that the present invention loads locating device.
Fig. 5 is the side structure schematic diagram that the present invention loads locating device.
Fig. 6 is lifting screw of the present invention and U-shaped lower shoe rotation connection structure schematic diagram.
Fig. 7 is the enforcement schematic diagram that loading locating device of the present invention realizes once loading.
Fig. 8 is the enforcement schematic diagram that loading locating device of the present invention realizes second load.
In figure:
11 are U-shaped lower shoes, 12 are U-shaped upper plates, 13 are horizontal slip back up pads, 14 are rectangle bolts hole, 15 is bolts;
21 is rollers;
31 are lifting screws, 32 are turning handles, 33 are springs, 34 are nuts, 35 are guide pillars, 36 is guide pin bushings, and 37 is bolts hole, and 38 are rounded stops, 39 outstanding bottom elevating lever are bearings, 40 is circular hollow interstage sleeves;
41 is adjusting bolts;
51 are posts, 52 are preformed holes, 53 are pulling force ribs, 54 are backing plates, 55 is anchor bolts, 56 is that to load bearing, 561 be that to load bearing, 562 with the V-type first of central through hole be that to load bearing, 57 be that second of band V-type plush copper loads bearing for V-type first not with central through hole for the V-type first of band recess, 567 is cutter hinged-supports, 58 be testing machine or reaction frame, 59 is lifting jack, 510 is axis of post, 511 is load positions, and 512 is eccentric throws.
61 is central through holes of the first loading bearing, and 62 is that the V-type of cutter hinged-support is most advanced and sophisticated.
Embodiment
The invention provides a kind of spiral loading locating device of post, it is characterized in that, comprise location auxiliary frame, horizontal movement system, vertical lift system and fixed system (see Fig. 3,4,5), wherein:
Described location auxiliary frame is hollow structure, comprises two pieces of horizontal slip back up pads, and described location auxiliary frame can in level and vertical direction movement arbitrarily, for supporting compression column and ensureing that compression column remains vertical stable in loading position fixing process;
Described horizontal movement system is used for making compression column movement arbitrarily in the horizontal direction;
Described vertical lift system is used for making compression column move arbitrarily at vertical direction and keep arbitrary height, described vertical lift system comprises: U-shaped lower shoe 11, U-shaped upper plate 12, lifting screw 31, turning handle 32, spring 33, nut 34, guide pillar 35, guide pin bushing 36 and bolt hole 37, the U-shaped base of described U-shaped upper plate 12 is provided with bolt hole 37, four bights of described U-shaped lower shoe 11 are provided with four vertical guide pillars 35, four bights of corresponding described U-shaped upper plate 12 are provided with four guide pin bushings 36, described spring 33 is inserted in the guide pillar 35 on U-shaped lower shoe, described U-shaped upper plate 12 penetrates four guide pillars 35 on U-shaped lower shoe 11 by four guide pin bushings 36, described lifting screw 31 screws in the bolt hole on U-shaped upper plate 12, there is turning handle 32 one end of described lifting screw 31, the other end and the U-shaped lower shoe 11 of described lifting screw 31 are rotationally connected,
The location auxiliary frame of described fixed system after making location and the compression column on it keep static.
Wherein:
Described spring 33 is arrange in pairs, away from paired spring 33 sheathed on two guide pillars 35 of lifting screw 31 one end, or on four guide pillars 35 all sheathed spring 33.
Described bolt hole 37 position arranges the nut 34 identical with bolt hole 37 internal diameter whorl.
The bottom of described lifting screw 31 is provided with outstanding rounded stops 38, the diameter of rounded stops 38 is greater than the diameter of lifting screw 31, the U-shaped base of described U-shaped lower shoe 11 is provided with bearing 39, the position of bearing 39 is vertical corresponding with bolt hole 37, be arranged with circular hollow interstage sleeve 40 outside described rounded stops 38, described circular hollow interstage sleeve 40 is connected with U-shaped lower shoe 11.
Described guide pillar 35 adopts with U-shaped lower shoe 11 and is threaded or welds, and described guide pin bushing 36 adopts with U-shaped upper plate 12 and is threaded or welds.
Described location auxiliary frame comprises U-shaped upper plate 12, the two pieces of horizontal slip back up pads 13 be shelved on U-shaped upper plate 12, two parallel-segment of described U-shaped upper plate 12 are provided with rectangle bolt hole 14, described horizontal slip back up pad 13 to be fixedly connected with rectangle bolt hole 14 by bolt 15 and horizontal slip can to fix on U-shaped upper plate 12, and described lifting screw 31 screws in the bolt hole 14 on U-shaped upper plate 12.
Described horizontal movement system comprises U-shaped lower shoe 11 and is evenly distributed on the roller 21 in U-shaped lower shoe 11 4 bights.
Described roller 21 is universal wheel.
Described fixed system comprises lower shoe 11 and is evenly distributed on the adjusting bolt 41 in U-shaped lower shoe 11 4 bights.
Illustrate below and utilize loading locating device of the present invention to realize the load test of post.
embodiment 1: load test (see Fig. 7)
(1) one group of 4 reinforced column 51, its sectional dimension is 200 × 200mm, is highly 2000mm, and eccentric throw (load position is to the distance of compression column axis) is respectively 0mm, 40mm, 80mm, 120mm, C30 concrete, and the main muscle of post is 4
20, stirrup is
6150, protective seam 15mm, coupled columns carries out bearingtest, and the loading position of post is eccentric throw, is namely respectively: 0mm(axis place), 30mm, 60mm, 150mm.
(2) be that the post 51 of 120mm is placed on the auxiliary frame of location by eccentric throw;
(3) be elevated vertical lift system, make post 51 flying height placed on it be greater than the height of cutter twisted branch seat 567, the V-type first being namely greater than band recess loads bearing 562 and is with the V-type second of plush copper to load bearing 57 and superposes height sum;
(4) a cutter twisted branch seat 567 is placed in the end face of post 51, make the V-type tip 62 of described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position 511 of post upper end, this example is that the eccentric throw of post 51 is drawn 512 on the surface of post, and draw vertical line in most advanced and sophisticated 62 sides of the V-type of described cutter hinged-support, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw 512 of post overlap;
(5) the force application location place of location auxiliary frame to pilot system is moved horizontally, this example adopts long column testing machine 58 to load, namely by loading locating device, post 51 is moved to the below of testing machine lifting jack 59, the center making the center of lifting jack 9 and second load bearing 57 is aimed at;
(6) another cutter hinged-support 567 is put into bottom surface loading place of post, make the V-type tip 62 of described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position 511 of post lower end, then reduce vertical lift system, the bottom surface of post is contacted with described cutter hinged-support 567; The eccentric throw 512 of post is drawn in the surface of post by this example, and at the most advanced and sophisticated 62 side vertical lines of the V-type of described cutter hinged-support, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw 512 of post overlap;
(7) by step (2)-(6), now, the loading position having fully achieved post is aimed at, reducing vertical lift system makes the bottom surface of the post 51 be supported in horizontal slip back up pad 13 contact with cutter hinged-support 567, the deadweight of post 51 is born by cutter hinged-support 567, so, the accurately in place of coupled columns 51 loading is just achieved;
(8) slowly lifting jack 59 is promoted, allow lifting jack 59 under the effect of reaction frame 58 to two ends cutter hinged-support 567 load application, post keep gradually under the effect of two ends cutter hinged-support stable after, continue the vertical lift system described in reducing, the bottom surface of itself and post 51 departed from;
(9) unscrew the bolt 15 of fixing horizontal sliding support plate 13, take down a horizontal slip back up pad 13, described location auxiliary frame just can shift out from the bottom of post;
(10) promote lifting jack 59, carry out bearingtest according to " Standard for test methods of concrete structures GB50152-92 " coupled columns;
(11) repeat the step of 2-10, bearingtest is carried out to the post that eccentric throw is 0mm, 40mm, 80mm.
embodiment 2: second load test (see Fig. 8)
(1) carry out Residual Load Bearing Capacity test to the post 51 under load and environment coupled action: the sectional dimension of reinforced column 51 is 125 × 125mm, high 800mm, the main muscle of post 51 is 4
10, stirrup is
650-100, protective seam 15mm, the length that post is given prominence on the edge of a wing is 120mm, eccentric throw 512 is 100mm, the diameter 32mm of preformed hole 52, the calculating limit bearing capacity of post 51 is 64kN, pulling force rib 53 is the stainless finish rolling screw thread of diameter 25mm, backing plate 54 diameter 100mm, thick 120mm, material is steel, anchor bolt 55 diameter is 55mm, before coupled columns carries out Residual Load Bearing Capacity test, to the working load being applied with 40kN by pulling force rib coupled columns, and post 51 is placed the actual working state of 365 days model configurations at artificial environment simulation box;
(2) V-type with central through hole first being loaded bearing 561 is enclosed within outside the anchor bolt 55 of post 51 bottom surface, in this specific embodiment, the described V-type with central through hole first loads bearing 561 and is embedded with 4 blocks of magnet with one end of pad contact 54, the intensity of magnet enough holds the deadweight of loading bearing 561 with holes, the described V-type with central through hole first is loaded bearing 561 to be enclosed within outside anchor bolt 55, described first loads bearing 561 just inhales on backing plate 54, adjust the position that described first loads bearing 561, make described first to load bearing V-type tip 62 and accurately aim at plan loading position 511 in the vertical direction, in the specific implementation, the loading position of post 51 and eccentric throw 512 are drawn in the surface of post by this example, and draw vertical line in the described first most advanced and sophisticated 62 sides of V-type loading bearing, the vertical line of most advanced and sophisticated 62 sides of V-type and the eccentric throw of post overlap,
(3) post of intending carrying out pressurized tests is placed on the auxiliary frame of location;
(4) be elevated vertical lift system, make post 51 flying height placed on it be greater than the height of cutter twisted branch seat 567, be namely greater than the described V-type with central through hole first and load bearing 561 and be with the V-type second of plush copper to load bearing 57 superposition height sum;
(5) another V-type with central through hole first being loaded bearing 561 is enclosed within outside the anchor bolt 55 of post 51 end face, the V-type tip 62 of cutter hinged-support is accurately aimed in the vertical direction and intends loading position 511, in the specific implementation, the loading position 511 of post 51 i.e. eccentric throw 512 is drawn in the surface of post by this example, and draw vertical line in the described first most advanced and sophisticated 62 sides of V-type loading bearing, after the vertical line of most advanced and sophisticated 62 sides of V-type and the eccentric throw 512 of post overlap, again the V-type second of a band plush copper is loaded bearing 57 and put into the V-type recess that described first loads bearing 561, the slip of bearing 561 when positioning action is loaded for preventing from being with the V-type first of recess, the one end contacted with backing plate 54 at the described first loading bearing 561 is equally embedded with 4 blocks of magnet,
(6) mobile loading posting is to the force application location place of pilot system, and this example adopts reaction frame 58 and lifting jack 59 to load, and namely by loading locating device, post 51 is moved to the below of lifting jack 59, and the center of the center of lifting jack 59 and loading bearing 57 is aimed at;
(7) V-type second of another band plush copper is loaded the bottom surface that bearing is put into post, make the V-type plush copper tip of the second loading bearing aim at the V-type recess tip of the first loading bearing;
(8) by step (2)-(7), now, the loading position having fully achieved post 51 is aimed at, reduce jacking system to make to be adsorbed in first of the bottom surface of the post 51 be supported in horizontal slip back up pad 13 and load bearing 561 and second and load bearing 57 and contact, the cutter hinged-support 567 that the deadweight of post is just formed by the first loading bearing 561 and the second loading bearing 57 is born, so, the accurately in place of coupled columns 51 loading is just achieved;
(9) slowly lifting jack 59 is promoted, allow lifting jack 59 under the effect of reaction frame to two ends cutter hinged-support load application, post 51 keep gradually under the effect of two ends cutter hinged-support 567 stable after, the vertical lift system described in reduction, makes the bottom surface of itself and post depart from;
(10) unscrew the bolt 15 of fixing horizontal sliding support plate 13, take down a horizontal slip back up pad 13, described location auxiliary frame just can shift out from column bottom;
(11) promote lifting jack 59, carry out Residual Load Bearing Capacity test according to " Standard for test methods of concrete structures GB50152-92 " coupled columns 51.
Above-described embodiment is only not used in for illustration of the present invention and limits the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (10)
1. a spiral loading locating device for post, is characterized in that, comprises location auxiliary frame, horizontal movement system, vertical lift system and fixed system, wherein:
Described location auxiliary frame is hollow structure, comprise two pieces of horizontal slip back up pads (13), described location auxiliary frame can in level and vertical direction movement arbitrarily, for supporting compression column and ensureing that compression column remains vertical stable in loading position fixing process;
Described horizontal movement system is used for making compression column movement arbitrarily in the horizontal direction;
Described vertical lift system is used for making compression column move arbitrarily at vertical direction and keep arbitrary height, described vertical lift system comprises: U-shaped lower shoe (11), U-shaped upper plate (12), lifting screw (31), turning handle (32), spring (33), nut (34), guide pillar (35), guide pin bushing (36) and bolt hole (37), the U-shaped base of described U-shaped upper plate (12) is provided with bolt hole (37), four bights of described U-shaped lower shoe (11) are provided with four vertical guide pillars (35), four bights of corresponding described U-shaped upper plate (12) are provided with four guide pin bushings (36), described spring (33) is inserted in the guide pillar (35) on U-shaped lower shoe, described U-shaped upper plate (12) penetrates four guide pillars (35) on U-shaped lower shoe (11) by four guide pin bushings (36), described lifting screw (31) screws in the bolt hole on U-shaped upper plate (12), there is turning handle (32) one end of described lifting screw (31), the other end and the U-shaped lower shoe (11) of described lifting screw (31) are rotationally connected, described horizontal slip back up pad (13) is shelved on U-shaped upper plate (12), described nut (34) is positioned at below U-shaped upper plate (12),
The location auxiliary frame of described fixed system after making location and the compression column on it keep static.
2. the spiral loading locating device of post according to claim 1, it is characterized in that, described spring (33) is arrange in pairs, the upper sheathed paired spring (33) of two guide pillars (35) away from lifting screw (31) one end.
3. the spiral loading locating device of post according to claim 1, is characterized in that, described spring (33) is arrange in pairs, all sheathed spring (33) on four guide pillars (35).
4. the spiral loading locating device of post according to claim 1, is characterized in that, described bolt hole (37) position arranges the nut (34) identical with bolt hole (37) internal diameter whorl.
5. the spiral loading locating device of post according to claim 1, it is characterized in that: the bottom of described lifting screw (31) is provided with outstanding rounded stops (38), the diameter of rounded stops (38) is greater than the diameter of lifting screw (31), the U-shaped base of described U-shaped lower shoe (11) is provided with bearing (39), the position of bearing (39) is vertical corresponding with bolt hole (37), circular hollow interstage sleeve (40) is arranged with outside described rounded stops (38), described circular hollow interstage sleeve (40) is connected with U-shaped lower shoe (11).
6. the spiral loading locating device of post according to claim 1, it is characterized in that: described guide pillar (35) adopts with U-shaped lower shoe (11) and is threaded or welds, described guide pin bushing (36) adopts with U-shaped upper plate (12) and is threaded or welds.
7. the spiral loading locating device of the post according to any one of claim 1-6, it is characterized in that: described location auxiliary frame comprises U-shaped upper plate (12), be shelved on two pieces of horizontal slip back up pads (13) on U-shaped upper plate (12), two parallel-segment of described U-shaped upper plate (12) are provided with rectangle bolt hole (14), described horizontal slip back up pad (13) to be fixedly connected with rectangle bolt hole (14) by bolt (15) and can to fix in the upper horizontal slip of U-shaped upper plate (12), described lifting screw (31) screws in the bolt hole (37) on U-shaped upper plate (12).
8. the spiral loading locating device of the post according to any one of claim 1-6, is characterized in that: described horizontal movement system comprises U-shaped lower shoe (11) and is evenly distributed on the roller (21) in U-shaped lower shoe (11) four bights.
9. the spiral loading locating device of post according to claim 8, is characterized in that: described roller (21) is universal wheel.
10. the spiral loading locating device of the post according to any one of claim 1-6, is characterized in that: described fixed system comprises lower shoe (11) and is evenly distributed on the adjusting bolt (41) in U-shaped lower shoe (11) four bights.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410004388.2A CN103712858B (en) | 2014-01-01 | 2014-01-01 | A kind of spiral loading locating device of post |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410004388.2A CN103712858B (en) | 2014-01-01 | 2014-01-01 | A kind of spiral loading locating device of post |
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| CN103712858A CN103712858A (en) | 2014-04-09 |
| CN103712858B true CN103712858B (en) | 2016-04-13 |
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| CN201410004388.2A Expired - Fee Related CN103712858B (en) | 2014-01-01 | 2014-01-01 | A kind of spiral loading locating device of post |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105004602A (en) * | 2015-07-27 | 2015-10-28 | 河南城建学院 | Hinge support device for column press test and using method of hinge support device |
| CN105096927A (en) * | 2015-08-25 | 2015-11-25 | 罗丽秀 | Lifting device capable of flexibly controlling pressed depth of electric bass |
| CN105096925A (en) * | 2015-08-25 | 2015-11-25 | 罗丽秀 | Lifting device capable of flexibly controlling pressed depth of electric bass |
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